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Construction

Roadways, parking lots, embankments, levees, airport runways, land development for new homes, malls or industrial parks, and buildings.  Lime and limestone are essential to civil engineers and contractors as they build the world around us.

Industry Overview: Carmeuse Lime and Limestone for Construction Applications

 

Lime for Soil Stabilization

Over 2 million tons of lime is used each year in the construction of roadways and embankments and to improve the soil at construction sites. Lime quickly improves the soil condition during construction and can add long term improvements to key soil properties.  Lime will:

  • rapidly dry wet soil
  • reduce soil plasticity
  • reduce soil swell
  • increase soil strength for construction vehicles
  • increase the long term strength of soil containing clay (lime stabilization)

 

Hydrated Lime for Increasing Asphalt Durability:

Hydrated lime is used as an additive in asphalt. Hydrated lime improves the cohesion of the asphalt binder to the aggregate particles, reducing "stripping." Hydrated lime retards the asphalt aging process and improves stiffness properties. Hydrated lime helps reduce asphalt pavement rutting and increases fatigue resistance to heavy wheel loads, a cause of pavement cracking. Adding hydrated lime to asphalt significantly increases pavement life and serviceability.

 

Crushed Limestone for Construction Uses:

Carmeuse produces crushed limestone for many construction uses including:

  • Portland cement concrete aggregate
  • Asphalt pavement (hot mix and warm mix) aggregate
  • Asphalt surface treatments
  • Road base
  • Structural fill
  • Railroad ballast
  • Rip rap
  • Drainage and erosion control

Limestone is mined at Carmeuse’s quarries and then crushed to the various sizes (gradations) used to produce aggregate meeting the specification requirements of ASTM, AASHTO and state Departments of Transportation.

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